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'''Mercury(II) oxide''', also called '''mercuric oxide''', has a formula of ]] and a formula weight of 216.6. It has a reddish-orangy color. Mercury(II) oxide is a solid at room temperature and pressure. '''Mercury(II) oxide''', also called '''mercuric oxide''', has a formula of ]] and a formula weight of 216.6. It has a reddish-orangey color. Mercury(II) oxide is a solid at room temperature and pressure.


==Uses== ==Uses==

Revision as of 14:58, 10 June 2006

Basic Information

Mercury(II) oxide
Mercury(II) oxide
General
Systematic name Mercury(II) oxide
Other names Mercuric oxide
Molecular formula HgO
Molar mass 216.5894 g/mol
Appearance Yellow or red solid.
CAS number
Properties
Density and phase 11.14 g/cm, solid
Solubility in water N/A
Melting point 500 °C (596 K)
Boiling point N/A
Basicity (pKb) N/A
Structure
Coordination
geometry 		?
Crystal structure ?
Dipole moment ? D
Hazards
MSDS External MSDS
EU classification Toxic (T)
R-phrases Template:R35
S-phrases Template:S1/2, Template:S26, Template:S37/39, Template:S45
NFPA 704
NFPA 704
safety square
NFPA 704 four-colored diamondHealth 3: Short exposure could cause serious temporary or residual injury. E.g. chlorine gasFlammability (red): no hazard codeInstability 1: Normally stable, but can become unstable at elevated temperatures and pressures. E.g. calciumSpecial hazards (white): no code
3 1
Flash point Non-flammable.
Supplementary data page
Structure and
properties 		n, εr, etc.
Thermodynamic
data 		Phase behaviour
Solid, liquid, gas
Spectral data UV, IR, NMR, MS
Except where noted otherwise, data are given for
materials in their standard state (at 25 °C, 100 kPa)
Infobox disclaimer and references

Mercury(II) oxide, also called mercuric oxide, has a formula of HgO and a formula weight of 216.6. It has a reddish-orangey color. Mercury(II) oxide is a solid at room temperature and pressure.

Uses

HgO is sometimes used in the production of mercury as it decomposes quite easily.

It is also used as a material for anodes for mercury batteries.

External links


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